Question

Three side lenghts of 5.2,6.3, and 10.5 units will form exactly one unique triangle​

Answer 1

True, the three sides will form exactly one unique triangle.

What is a triangle?

A triangle is three dimensional shape, whose third length is less than the sum of the first and second length.

• let the first length = a
• let the second length = b
• let the third length = k

(b - a) < k < (b + a)

(6.3 - 5.2 ) < k (6.3  + 5.2 )

1.1 units < k < 11.5 units

The third length = 10.5 units which is greater than 1.1 units and less than 11.5 units.

Thus, the three sides will form exactly one unique triangle.

Learn more about conditions of a triangle here: brainly.com/question/22674890